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What does 'car coal mining' mean?

1 Answers
AddysonAnn
07/30/25 7:40am
Car coal mining refers to cleaning carbon deposits. 'Coal mining' is actually a shorthand term for disassembling and cleaning the engine's intake system. During vehicle operation, as long as the engine is running, carbon deposits will form. When these deposits accumulate excessively, they can affect the engine's normal operation. Therefore, it is necessary to clean these carbon deposits regularly based on the vehicle's usage. Below are some methods for cleaning carbon deposits: In various 'auto parts markets' and 4S shops, due to technical reasons or other factors, the common method used for cleaning carbon deposits is 'intravenous injection.' However, this only addresses the symptoms, not the root cause, and is particularly ineffective for slightly older vehicles. Simply put, the reason is that these carbon deposits are too 'stubborn.'
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Why is there fog inside the dashboard?

Fogging inside the car dashboard occurs due to high humidity inside the vehicle. Here are the relevant explanations: 1. Window ventilation: If the fog inside the car is not severe, you can open a small gap in the windows on both sides. This allows air convection between the inside and outside of the car, reducing the temperature difference and gradually dissipating the fog. The principle of this method is the same as using the air conditioner to blow cold air, but it does not increase fuel consumption. However, window ventilation has obvious drawbacks: it is not suitable during rain or snow, on highways, or when the fog is heavy, and it also lowers the temperature inside the car. 2. Air conditioning system: For most car owners, using the air conditioning system to defog is the most common method. Almost all cars on the market today have air conditioning vents under the front windshield. Simply selecting the appropriate air conditioning setting can use the air blown by the air conditioner to remove the fog.
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What are the instructions for the headlight switch of the Grand Cherokee?

The headlight switch of the Grand Cherokee is located on the left side of the steering column, including the position lights, low beams, and fog lights. The main headlight switch is on the lever behind the left side of the steering wheel. Taking the 2005 Grand Cherokee as an example, it belongs to the mid-to-large-size SUV category, with body dimensions of length 4610mm, width 1826mm, height 1763mm, a wheelbase of 2690mm, a fuel tank capacity of 78l, and a curb weight of 1793kg. The 2005 Grand Cherokee features a solid axle non-independent front suspension and a solid axle non-independent rear suspension. It is equipped with a 4.0L naturally aspirated engine, delivering a maximum horsepower of 197PS, a maximum power of 145kW, a maximum torque of 311Nm, paired with a 4-speed automatic transmission.
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How to Open the Fuel Tank Cap of a Volkswagen Car?

To open the fuel tank cap of a Volkswagen car, follow these steps: 1. Locate the handle near the door on the lower left side of the driver's seat, then pull it upwards to open; 2. Use the remote unlock function—after unlocking the car, press the fuel tank cap door to open it. Taking the 2020 Volkswagen Magotan as an example, its body dimensions are: 4865mm in length, 1832mm in width, and 1471mm in height, with a wheelbase of 2871mm and a fuel tank capacity of 66 liters. The 2020 Volkswagen Magotan features a MacPherson strut independent front suspension and a multi-link independent rear suspension. It is equipped with a 1.4L turbocharged engine, delivering a maximum horsepower of 150 PS, a maximum power of 110 kW, and a maximum torque of 250 Nm, paired with a 7-speed dual-clutch transmission.
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Where is the fuel filter located in the Volkswagen Magotan?

The fuel filter in the Volkswagen Magotan is located inside the fuel tank. The fuel filter is assembled together with the fuel pump, and special tools are required to remove the fuel pump for filter replacement. Taking the 2020 Volkswagen Magotan as an example, it belongs to the mid-size car category with the following body dimensions: length 4865mm, width 1832mm, height 1471mm, wheelbase 2871mm, fuel tank capacity 66 liters, and curb weight 1445kg. The 2020 Volkswagen Magotan features a front MacPherson strut independent suspension and a rear multi-link independent suspension. It is equipped with a 1.4L turbocharged engine, delivering a maximum horsepower of 150PS, maximum power of 110kW, maximum torque of 250Nm, paired with a 7-speed dual-clutch transmission.
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What causes a motorcycle to stall when giving it gas?

Reasons why a motorcycle stalls when giving it gas: 1. During the idle period just after starting, the carburetor only supplies combustible mixture to the cylinder head through the idle jet to maintain stable idling. This is caused by the main jet being blocked by the needle. When the needle moves up, the main jet starts working, gradually restoring the mixture to normal conditions; 2. When the throttle is increased, the intake air volume instantly increases, making the mixture in the cylinder head too lean, which prevents the engine's combustible mixture from burning continuously in a short time. A motorcycle is a two- or three-wheeled vehicle driven by a gasoline engine and steered by handlebars. It is lightweight, flexible, fast, and widely used for patrol, passenger and cargo transportation, as well as a sports equipment.
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Is it necessary to replace the car steering gear if it's leaking oil?

It is not always necessary to replace the car steering gear if it's leaking oil. If the leakage is minor, you can temporarily ignore it and continue driving. However, if the leakage is severe, it is recommended to replace it directly. In vehicles equipped with power steering systems, the energy required for steering is mostly provided by the hydraulic (or pneumatic) energy from the oil pump (or air compressor) driven by the engine (or motor), with only a small portion coming from the driver's physical effort under normal conditions. The power steering system converts part of the mechanical energy output by the engine (or motor) into pressure energy and, under the driver's control, applies hydraulic or pneumatic forces in different directions to the steering transmission or a component in the steering gear to assist when the driver's effort is insufficient. Collectively, these components are referred to as the power steering gear.
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